Process of manufacturing combustible gases.



No. 888,969. PATENTED MAY 263-1908,

E. N. DIOKERSON. PROCESS OF MANUFACTURING GGMBUMIBLE GASES.

APPLIGATION FILED NOV. 1, 1904.

AYTGRNEY No. 888,969. PATBNTED MAY 26, 1908.

E. N. DIGKERSON. PROCESS OF MANUFACTURING C(JI\[BUS'IIBLE GASES.

APPLICATION FILED NOV. 1, 1904.

:JWITNESSES: INVENTOR ATTORNEY lowing is a specification.

. To all whom it may'concim;

r-t'ibl'e gas which mayorrnay'not nating'in duality.

EDWARD n; DrorurasoN, oii's'rovkL-L, NORTH CAROLINA.

stresses on 'irarr'oraorunmo oorrsus'rrnrin' GASES.

.Be it known that I, EDWARD N. Dicken- SON, acitizen oi'the'UnitedStates, and a resident of Stova lhj Granville county,- North Carolina, haye iny ented certain new and use .ful improvements.inirocesses ofManufac turing Combustible Geses,

of which the follhisinvcntion relates to an improved processjforeconomically IIlflIlllftlGiiUIlfliCOIllbllS- it is We l known that theordinary 0 era tion in manufacturing water gas can on y be practicallycarried out, when coal is used, by the employment of anthracite orsimilar hot material. it cannot be successfully practiced in on olas bythe use of bituminous coal. (in t e other hand bituminous coal canlie'distilled to produce ordinary coalgas leaving'a coke which isgenerally sold in the market for household, consumption or similarpurposes. Further, in the ordinary process of manufacturing water gas,during the operation known as blowing u an enormous amount ofheatescapes to t e atmosphere and is wasted;v I propose to utilizethewaste heat from a water gas cupola for the. coking.

of bituminous coal while alternately roducmg water gas from saidcupola-an duced'in the coal gas bench. The coal and water gas soproduced, I further propose to mix and bring together into a'comrnon mamor holder, whence they may be utilized for heating purposes. 1 furtherpropose to add to the coal or water gas, if desired or to both,sufl'icientilluminant to produce illuminating gas if desired, and I"further propose to utilize the wasteheat cf the oupola in the processof blowing ,u attergitlhas aided in the distillation of dis. coal, *inheating an ordinary checkenwork which may he subsequently used forheatin the 'air or producing steam to be used in t 1e cnpola in theprocesses of I making water a'sfand I further repose to aid-in the distilation of the coal "ycausing "the hot water gas to pass throughforoverthe" same on its way to the holder or mains.

"My invention will be readily understood fromthe accompanying drawingsof which, i

.Figure 1 -repres ent,s a vertical elevation, partly" in section, of one'unit of the ap' areltus; Fl 2 ,a front view of a set of cupo as andbenc res showing the coke transferring carriage.

V B pecification of Letters intent. Apflqatioii-flled November 1, 1904.Serial No. 230,925.

e illumi- .wouldbe used in practice.

, i g. said cupola with coke, preferably hot pro- Patented May-26, 1908.

- The operation of one unit of my apparatus is shown in Fig. l'in whichA represents a water gas cupola of any approved construction, and B acoal gas retort, C a heatab."

sorbing checker-work,'D a purifier and scrub-- ber of any suitableconstructromand E a transferring oarria e for receiving the coke fromany one of t e'coaligas retorts in the bench and transferring cupola.

F representsthe well known form of cleans it to the desiredlevelingthe'salnefl .The parts are. shown in a: diagrammatic way,-b utwill'be readily understood by a com petent gas engineer.

r The cupola'A s provided with an air blower and inlet G for blowing upwhich is shown separate from the blower G for con venience of,illustration, though, manifestly but one blower with suitableconnections The cupolaA may, further be provided with an oil pipe H forfeeding oil, if desired.

It is also provided ing plunger forforcing out the coke, or ii desirewith a feeding funnel J which is to have suitj able valves and adistributer, as shown, if de- 5 sired. The pipe K connects with the heatabsorber, as shown, and may have the branch K. for the supply of steam,if desired. The outletpipe L is provided with three branches; one Lconnecting with the heating chamber surrounding the distilling retort,another L entering the' chamber of the distilling retort,

while the third L' may connect directly with the mains or place ofutilization of the gas or may pass into the scrubber and puri-* fier, asdesired. It is manifest that all three branches L L" and L would not bere quired unless itis desired to practice the processcs for which theyare designed The distilling retort B may be of any ordinary form, suchas the coal gas bench generally used, or if desired, the present form ofLowe generator, see U;S. Patent 711,905, for the production of what is,known as Lowe anthraeite may be employed. In this case the externalheating chamber M. is ofcourse omitted, but the gas producedmay containa certain amount' of nitrogen, as will be presently described.

When the chamber. M is omitted and replaced loo 1 by the well known Lowegenerator, the retort is heated by the operation of the latter. In. casethe Lowe style of horizontal retort is emp1oyed,the coal. may be fedfrom above in the well known manner, but, otherwise it is fed into theendor ends of the retort.

.retorts, as desired, and the'pusher or leveler The pipe from theblowerG.

I or oil may be admitted at-will.

into the base of the cupola in the usual way.

.used

through the heat absorber distilled from the coal' at V, V

The carriage E is arranged on rails, as shown, to receive the contentsof each of the F may also be arranged on rails to operate at each retortat will. Air" outlet is provided with the retort B by the pipes N, L andN passing to the scrubber and purifier D or di. rectly to the outlet asdesired. The retort B is likewise provided with the inlet T which may beutilized for the introduction of oil. The heating chamber M is providedwith the pipe D assing to the bottom of the heat absorber which, itselfis rovided with outlet R communicating with the atmosphere. enters theupper part of the checker-work which is also provided with a pipe Sthrough, which the steam My roeess as carried'out'bjtfmecannow be reaily understoodf. The cupola A being assumed to be charged with coke in astate of combustion, and the retort B'with a distillable coal or similarmaterial, my o eration is as follows: Air either hot or'col is blownThis, in case the ordinary coal gas bench is is 'caused to through thepi es L, into the heatingchamber M thereby eatingand distilling the coalin the retort B after passing around the retort B, thehot gases passthrou h the pipe P and thence esca e through the outlet or purge valve Rto t e atmosphere.

pass by pipe N e1ther' directly to the place of utilization through thepipe 0, or through thepurifier Dv to a holder. As soon as the process ofblowing up is finished, steam is admitted to the bottom of the cupolathrough the pi e K either through the inlet K, or it may be generated inthe heat absorber C by spraying water throu h the pipe S. The pipes L, LL and 5 are respectively provided with valves w, 0: as and Between thepipe N and a nozzle N leading intoj'the base of the purifier D is a-valve These valves are opened and closed to permit the gas to passthrough the several pipes with which they cooperate into theycomponentelements of the apparatus, or to the main in accordance'with theoperation desired to be pursued. The water gas produced may passdirectly through the outlet 0 or the purifier D, but preferably. passesby the ipe it into the coal gas retort where it mingle with the coalgas, and by its heat aids in ihuqlistillation of the same. In this casethe resulting gas escapes as before, either through the pipe 0 or thepurifier. When the coal has been distilled, the valve 0: of the pipe Lis closed, the retort B opened in the usual way and the coke meass aftercombustion .other section at will.

Meanwhile, the gases chanically or manually caused to fall into thecarriage provided with closing valve W, and

is then conveyed by the carriage to the cupola i the valve W and 'thevalve in the hopper pipe J, the coke is readily fed into the desiredcupola, the retort B being then recharged, and the a paratus prepared torepeat the process. When the water gasfrom the eupola is to passdirectly through the outlet 0, the valveszc and 90 are 0 ened, and thevalves as, m and m are close If the gas is to pass to the purifierD thevalves at, m and :0 are closed and valves as and x o ened. When the gasis to pass into the retort the valves w, x and m are closed and valve acopened; If the heating gas is to pass into the heating chamber M, thevalve-a: is opened and the remaining valves closed, but under certainconditions, or when it is desired to have the gas also ass into theretort at the same time, the va vs 00 may be opened. It is of courseobvious that a separate heat absorber and purifier is not required foreach retort, but the pi es from the cupolas and retort's are lateral yconnected in the usual way so that each may be connected to any isintended to be illustrative, and the pipes and connections would bearranged in practice in the manner Well known to all gas engineers andall pipes would be provided with proper valves for controlling heatedases.

In case it is desired to produce with some admixture of nitrogen thanduring the period of the blow off, the gases from the cupola A may becaused to pass throu h the ipe L into the coal in the retort B an may hecarried away jointl with the gases pro. duced by this distillation, butin this case, the resulting gases will be rendered'impure by thenitrogen and products of combustion so mingled with the resulting gases.

What I claim as my invention and desire to secure by Letters Patent is 2A process of producing combined coal and water gas consisting ofblasting a bed of fuel to incandescence by means of a fluid and at thesame time heating externally by the blast gases a retort containing coalthereby dis tilling the coal gas and at the same time utilizing theblast gases to heat a checker-work chamber and simultaneously heatingthe blast fluid passing through said chamber, then roducing water gas inthe usual way, and than combining the water gas with the distilled. coalgas. v

In testimony whereof I have signed this spiwi'lication in the presenceof two subscribing witnesses.

EDWARD N. DIUKERSON.

i tnesses GEO. W. JAEKEL, ()LIN A. FosTER.

Of course the drawing.

el gas

